I liked Simpsons Wrestling, going Ned Flanders was a tonne of fun. Hit & Run and The Simpsons Game were also pretty good.

As for the worst I've played, I tend not to go for ones that have shitty reviews so it's kind of hard to pick, especially up to date ones, I'd probably say Pokemon Black for the DS but, that's not really based on gameplay, more on the fact that I had no fucking clue who the Pokemon were and got bored within about half an hour. Think I'll just stick to Pokemon Gold from now on.